Search results

Mediating effects are often tested using hierarchical multiple regression (HMR) procedures. Typical of the HMR-based strategies is the very frequently cited and widely used procedure described by Baron and Kenny (1986). Unfortunately, there are several important problems with it. More specifically, as we demonstrate below, it: (a) is of virtually no value for buttressing claims of mediating effects for data from non-experimental research; (b) produces erroneous inferences about the existence of mediating effects for misspecified mediation models; and (c) is incapable of providing credible evidence of such effects in a large proportion of cases, even for properly specified mediation models. We detail a number of important implications of our analyses.

This study examined the impact of resonance expressed by the positive emotional attractor (PEA) and dissonance represented by the negative emotional attractor (NEA) created by medical students during diagnostic encounters with standardized patients (SPs) (laypeople) from the clinical skills exam (CSE). Secondary data were collected from 116 videotaped CSE encounters between SPs and medical students. Associations among the PEA and NEA states, and medical student effectiveness measured by SP, faculty, and differential diagnosis scores using moderated multiple regression analysis were determined. Results suggest that the PEA and NEA are powerful conditions for determining medical student effectiveness in clinical encounters.

Researchers in the field of leadership are increasingly turning their attention to the concept of emotional intelligence (EI) to better understand how aspects of individual difference may help to explain variations in leadership behavior. Importantly leadership practices that foster positive affectivity have been found to be associated with important job- and work-related outcomes. This study aims to investigate whether EI moderates the relationship between a measure of leader–member exchange (LMX) and important work-related outcomes within Malaysia. LMX was found to be positively associated with organizational citizenship behavior, job satisfaction, organizational commitment, psychological well-being (PWB), and in-role performance. However, the relationship between LMX and job satisfaction, LMX and organizational commitment, LMX and PWB, and LMX and in-role performance was also found to be moderated by EI. The findings suggest that EI can help leaders and subordinates to facilitate stronger identification and emotional attachments with each other.

To resolve an inherent dilemma in extant research on geographically dispersed research and development (R&D), this study explores interdependencies between formal and informal network structures. Firms that seek to benefit from the decentralization associated with disperse R&D must align it with an informal structure that enhances organizational members’ motivation to share and assimilate their unique knowledge and skills. On the basis of an investigation among 424 US biotechnology firms between 1973 and 2003, this study reveals the moderating effect of the firm’s informal social structure on the effect that geographically dispersed R&D personnel have on the exploration of new technological opportunities. Specifically, the higher the social network density among R&D members, the more likely geographic disparity is to affect exploration; however, this likelihood decreases with an increase in power asymmetries. These results offer insights into the conditions in which the appropriate management of geographically dispersed R&D varies.

The purpose of this paper is to shed light on the interplay between selected consumer behavior constructs and their individual and joint influences on purchase intentions of global, local, and hybrid brands. This is a topic that is becoming increasingly important as the world moves toward global economic interdependence and increasingly more firms expand abroad.

As the paper is in its conceptual/modeling phase, its research design is not yet complete, nor does it offer any findings. Resting our work on attitude and identity theories, we derive hypotheses about the potential influence of consumer behavior constructs, that is, the levels of the consumer’s global consumption orientation, globalization attitude, consumer ethnocentrism, and consumer cosmopolitanism on global brand attitude and its influence on willingness to purchase global versus nonglobal brands. We also derive hypotheses about influences that might moderate this relationship; specifically the consumer’s affinity with the home country of the particular brand, and the perceived value embedded in the brand.

Our work will contribute to the expanding literature on global consumer culture and consumption patterns and will thus provide valuable insights for international marketing managers and for social policy.

Our work will examine the joint influences of several consumer behavior constructs on brand purchase behavior, in addition to the independent influences of these constructs. It will also explore the possible mediating influence of global brand attitude on purchase intentions and moderating effects, if any, of perceived value and consumer affinity on consumers’ choices of global over local and hybrid brands.

We searched JM from 1990 to 2005 to identify all studies that employed OLS regression.¹ The search resulted in 83 articles with 147 OLS regressions. Many authors specifically state that they used OLS and these were promptly included in the sample. Other authors acknowledged regression as a methodological procedure without explicitly specifying an estimation technique. To inquire whether OLS was used, we communicated with all of these authors. In all, 51 authors were contacted, with 44 responding. Of the 44 that responded 43 had used OLS; the only exception was subsequently excluded from the analysis. The remaining seven articles were checked once more, and consensus was reached that OLS had most likely been used. Therefore, they were also included in the study.

This study investigates the relationship among preference for full-time employment, primacy of part-time employment, and work-related outcomes in a nationally representative sample of part-time college instructors. Results based on multilevel cross-classified random effects models indicate that part-time faculty who prefer full-time positions report working on average more hours per week and express greater work-related dissatisfaction than those who choose reduced work hours. Individuals whose part-time jobs are their primary jobs have less job satisfaction but work longer hours than those who treat part-time work as secondary. Finally, those who prefer full-time employment report more negative job satisfaction when the primacy of their part-time jobs is high.

There has been much debate in the literature regarding whether political pressures are beneficial or detrimental to public agencies’ performance and outcomes. This chapter explores under what conditions, if any, do political pressures have any positive effects.

A survey methodology and multivariate regression models are applied to assess the relationship between political pressures and public agencies’ performance and outcomes, using data from South-America and Europe. The theoretical scope is developed drawing from the public sector, management control, and goal-setting literatures.

The effects of political pressures on public agencies’ performance and public officers’ job satisfaction are moderated by technical certainty. At low levels of technical certainty political pressures have negative effects while at high levels they have positive effects.

All limitations of survey research apply.

Governments, public officers, and politicians should take into account the dynamics described in this study so as to limit the negative effects of political pressures and take advantage of the positive ones.

This is the first study to suggest that the effects of political pressures on public agencies vary depending on the nature of the task public agencies perform. The results reported here bring a new perspective to the literature, helping to clarify prior conflicting results. In addition, the fact that results are consistent for South American and European public agencies suggests that these findings might be generalizable across cultural boundaries.